Window glass cleaning implement



Jan- 4, l1938. 1 KouKAl.

` l WINDOW GLASS CLEANING IMFLEMENT 2 shees-sheet 1 aumento@ oa/A5 /fOU/l/ Filed Dec. 18, 1954 Jah, 4, 1938. l.. KOUKAL 2,104,161

WINDOW GLASS CLEANING IMPLEMENT Filed Dec. 18, 19x34 2 Sheets-Sheet 2 Patented Jan. 4, 1938 PATENT oFFicE WINDOW vGLASS CLEANING IMPLEMENT Louis Koukal, New York, N. Y.

Application December 18, 1934, Serial No. 757,988

4 Claims.

This invention `relates to improvements in window glasscleaning implements and more particularly to the kind set forth in my U. S. Letters Patent No. 1,975,585, dated October 2, 1934.

In my prior patent above referred to, I provided a water tank upon the handle of a squeegee vand provided a novel means of yfeeding Water under pressure along the length of the squeegee as needed during use of the same. Although sucharrangement of parts produced certain advantages, the capacity of the water supply tank was limited due to tiring eiects which would result on the Vhand of a user if a tank of larger .capacity were provided. Furthermore, the weight of the tank and water, and the swishing of the water in the tank during use of the device has a tendency to throw the `device off balance when held in the hand of a user. Therefore, one of Ythe main features of the invention is to eliminate the above objections by supporting the water supply tank upon the window cleaners belt and-connecting the same with the fountain squeegee by means of'a exible hose, thus lessening the weight of the squeegee and affording the user of an unthereof.

Another feature of the invention resides in a fountain window cleaning implement in which an elongated brush is mounted in juxtaposition with respect to the rubber .squeegee blade and which may be brought into use in conjunction with the squeegee blade by reason of the angular position at which the implement is held in the hand of an operator. -Contact of the brush with the glass pane to be cleaned will effect a scrubbing of the surface to be cleaned, after which the trailing edge of the squeegee blade will wipe the surface clear and dry. Any surface dirt is wiped from the glass by the brush to avoid smearing and prevent accumulation of dirt upon the wiping squeegee.

' A further object of the invention is to provide a window pane cleaning implement of the above construction in which the scrubbing brush may be moved to an inoperative position in the event that use of the same is not desired in conjunction with the squeegee wiping blade.

With these and other objects in view, the invention resides in the certain novel construction,

combination and `arrangement of parts, the es-l sential features of which are hereinafter fully `described, are particularly pointed .out in the appended claims, and illustrated in the accompanying drawings, i-n which:

tiring sweep of the instrument during steady use.

Figure 1 is a perspective View illustrating the invention in use.

Figure 2 is an elevational view with the water supply tank shown in section.

Figure 3 is a vertical transverse sectional view `5 through thefwindow cleaning implement with the squeegee blade yin Contact with a glass surface to be cleaned.

Figure 4 is a fragmentary top plan view.

Figure 5 is a fragmentary horizontal sectional view taken on the plane of the water supply pipe and looking upward.

Figure 6 is a bottom plan View of a modified form of my invention.

Figure '7 is an end elevational view thereof.

Figure 8 is an enlarged vertical transverse sectional view.

Figure 9 is a vertical longitudinal sectional view on .the line 99 of Figure '7,

Figure 10 is an enlarged detail vertical longitudinal sectional View through one end of the instrument. l

Figure 11 is an enlarged vertical transverse sectional View on the line I I-I I of Figure 9.

Referring to the drawings by reference characters, the numeral IEI designates my improved hand cleaning implement in its entirety, and which includes a hand-grip II, one end of which is formed with a hat attaching plate I2, the same extending transversely of the handle I I. Riveted as at I3 to the under side of the plate I2 is an elongated clamping head or plate I4 and cooperating with the fixed clamping plate I4 is a removable elongated clamping plate I5 of a length equal to the length of the plate I4. Held clamped between the plates I4 and I5 are rubber strips I5 and I1, both strips being of a width greater than the plates I4 and I5 but the strip IS being Wider than the strip I'I so that the Working edge of the strip IB overhangs the working edge of the strip Il as clearly shown in Figure 3 of the drawings.

Fitting against the under side of the plate I5 is the rigid brush backIE of a brush I9, the bristles of the brush I9 terminating on a plane substantially even with the working edge of the flexible rubber strip I'I. The brush I9 extends the length of the plate I8 as shown in Figure 2 of the drawings.

The rubber strips I 6 and I'I and the brush I9 are secured together by screws or other like fastening elements 29, the threaded ends of the screws having screwing engagement with the plate I8 and removable brush I9.

Clamped between the rubber strip I1 and the tact with the glass.

the path of the wiping blademay be wiped free clamping plate I5 at spaced distances along the length thereof are supporting eyes or hangers 2|, the eye portion extending outwardly beyond the rear edges of the strip I1 and plate I8 for supporting a water supply pipe 22. The pipe 22 extends the length of the brush and the clamping plate and has its ends bent inwardly as at 23 and which ends terminate in jets or nozzles 24 which are intended to direct streams toward opposite ends of the instrument, as illustrated in dot and dash lines in Figure 2 of the drawings. The

jets 24 terminate on a plane intermediate the l bristles of the brush I9 and the rubber strip VI1 as best seen in Figure 3 of the drawings whereby to supply water or moisture to the brush and toward the working surfaces of the rubber squeegee strips I6 and I1. Y

'I'he water supply pipe 22 centrally thereof is provided with an attaching nipple 25 to which one end of alength of flexible hose or tubing 26 is xedly connected, the other end of the hose or tubing being connected in a manner now toV be explained. Y

For the purpose of supplying water to the instrument Il), I provide a water supply tank 21, the bottom wall of which is provided with a nipple 28 in which aV control valve 29 is provided, the hose or tubing 26 being joined to the nipple 28 as illustrated in Figure 2. The top of the tank 21 is provided with a filling opening 3U which is closed by a cylinder 3l which threads into the opening 30 and which depends into the tank 21. The top end of the cylinder 3| is closed by a screw plug 32 and slidably mounted in the plug 32 is a plunger rod 33, the outer end of which is provided with a manipulating knob 34, while the inner end of the rod 33 carries a plunger head or piston 35. The inner end of the cylinder 3| terminates short of the bottom of the tank 21 andv is provided with an opening 36 normally closed by a ap type check valve 31. The purpose of the plunger is to enable air to be pumped into the tank 21 above the level of liquid contained therein for building a pressure upon the liquid suflicient to force the liquid contents of the tank to flow through the hose 26 tothe instrument I0. The water supply tank 21 is adapted to be supported upon the safety belt 38 of a Window cleaner as illustrated in Figure'l and for the purpose of supporting the tank, I provide a spring clip 39 upon one side of the tank, the open end of the clip facingdown- Ywardly to enable the clip to be snapped over the top edge of the belt as shown in Figure 2.

In Figure 1 of the drawings, the device is shown in use, and it will be noted that the operator may grasp the handle II of the instrument I0 in one hand and with the other hand, control the flow of water from the tank to the instrument I0 by manipulating the valve 29 with his other hand. If the window glass to be cleaned happens to be exceptionally dirty, the surface dirt may be washed therefrom by bringing the bristles of the brush I 9 and the free working edge of the squeegee strips I6 and I1 into contact with the surface to be cleaned. The bristles of the brush and Ysqueegee strips are brought into working engagement with the surface by holding the handle Il at a particular angle .and slightly exing the squeegee strip I E, and by changing the angularity and pressure, the working surface of the squeegee strip I6 alone may be brought into working con- Thus any moisture within of the glass in the manner of an ordinary squeegee. It will of course be understood that after the surface of the glass has once been moistened, the valve 29 may be shut off and also that as the pressure within the tank 21 becomes lowered, the same may be increased by the reason of the operator grasping the knob 34 and imparting reciprocation thereto.

In Figures 6 to 11 inclusive, I have illustrated a slightly modified form wherein the cleaning brush is adjustably supported to enable movementof the same to operative and inoperative positions. In this form, I provide U-shaped clips or channels 40 at opposite ends of the clamping Vplate I5, the said clips or channels being fixedly secured to the clamping plate and the open mouth ends of the clips facing inwardly. I'hese clips slidably receive the brush back 4I of an elongated brush 42, the bristles being designated at 43. The opposite ends of the brush back 4I are Vrespectively received in the clips40 and the friction between the clips and the brush back is suflcient toV prevent shifting movement of the brush but in order to assure the holding of the brush in an adjusted position, Iprovide a clamping screw 44 which passes through an elongated slot 45 extending transversely of the brush back 4I centrally thereof, the said screw having threading engagement.V in a threaded hole 46 provided Y in theclamping plate I5. By reference to Figure 8 it will be noted that by tightening up upon the screw 44, the brush 42 may be held against sliding movement. This construction permits movement of therbristle side of the brush to be moved clear of thefplane of the working surfaces of the rubber squeegee strips I6 and I1 to prevent any possible smearing contact of the bristles of the brush with the surface to be cleaned in cases where practically no surface dirt is present.v

While I have shown and described what I consider to be the most practical embodiment of my inventionI wish it to be understood that suchV other changes as come within the scope of the appended claims may be resorted to if desired. VHaving thus described the invention, what I claim as new and desire to secure by Letters side of said wiping blade in spaced relation thereto with its bristle ends disposed inwardly of the plane of the wiping edge thereof, whereby exing of said wiping blade against a surface to be Washed will cause said brush to simultaneously engage such-surface, and means for supplying a washing iiuidbetween said wiping blade and brush.

2. In a window cleaning implement, in combination, a hand squeegee having an elongated head, a handle extending angularly from said head, and a exible wiping blade carried by said head, a brush mounted on said head parallel to and in spaced relation to the inner side of said wiping blade, the bristles of said brush being disposed inwardly Vof the plane of the wiping edge of said Vwiping blade so that the wiping blade trails said brush during use of the implement with both said brush-and wipingblade in simultaneous contact with the surface being cleaned, and means for supplying predetermined quantities of cleaning uid between said brush and wiping blade and implement is in use.

3. In a hand window cleaning implement, in,

combination, an elongated head having a handle extending angularly therefrom, spring clips at opposite ends of said head, and a brush having its ends engaged by said spring clips for supporting said brush parallel to said elongated head.

4. In a window cleaning implement, in combination, an elongated head having a handle extending angularly therefrom, anv elongated brush, means at opposite ends of said elongated head for slidably supporting said brush for adjustable movement laterally thereof, and fastening means for securing said brush in an adjusted position against movement.

LOUIS KOUKAL. 

